# Questions Asked onOctober 16, 2016

1. ## Science

Describe and explain 2 ways ti separate a mixture o sulphur powder and sodium nitrate crystals to collect pure samples

2. ## math

identify the situation that each graph could represent

3. ## math

In a class of 150 students 70 passed in verbal and 90 passed in aptitude.10 failed in both the subject.how many students passed in both subject

4. ## Physics

5. You are hiking in a canyon and you notice an echo. You decide to let put a yell and notice it took 2 seconds before you heard the echo of your yell. How far away is the canyon wall that reflected your yell?

5. ## Physics

An object of mass 10kg is placed on an inclined plane at 30 degree to the horizontal. Calculate the reaction between two surface and what is the coefficient of static friction.

6. ## Social studies

Why was the mayflower compact so significant?

7. ## Physics 11 URGENT STEVE OR BOB OR ANY PHYSICS Guys

An 42 kmph wind blows towards 215 degrees while a plane heads towards 125 degrees at 152kmph. What is the resultant velocity of the plane? tenks vry much!!!!!!!!!!!!!!!!!!!

8. ## phy 101

A 2.0 kg mass traveling at 3.0 m/s strikes another 2.0 kg mass traveling at -1.0 m/s. They collide and have a complete elastic collision. If the second mass moves at 3.0 m/s after the collision, what does the first mass do?

9. ## physics

A stone is thrown vertically upward with a velocity of 58 ft./sec. A.) How high will it rise? B.) How soon will it reach the ground again? C.) What is its velocity half-way up?

10. ## Social Studies

Why were Middle Colones more favorable to farmers than New England? Thanks in advance for any responses!

11. ## Physics Force and Friction question

A crate of mass 100kg is at rest on a horizontal floor. The coefficient of static friction between the crate and the floor is 0.4, and the coefficient of kinetic friction is 0.3. A horizontal force, F, or magnitude 350N is applied to the crate. Which of

12. ## Math

1. y-5/3=1 -2 8*** 18 6 2. 6x+29=5 -4*** -18 204 -144 3. -21a+16a -5a*** 5a 37a -37a 4. 9a-b-2a-10b -7a+11b 11a+9b -11a-9b 7a-11b*** 5. 5(x+10)+x 6x+15 5x+15 6x+50*** 4x-50 6. -4n+7+2n=1 1 3*** -3 4 7. 4(y-4)=8 -2 2 4 6*** 8. Raymond buys bottles of water

13. ## Spanish 1A

Which is the most common rice dish in the Spanish speaking countries? A. arroz con leche B. arroz con pollo C. arroz bianco D.quesó

14. ## maths

In a class of 60 students,the number of students who passed biology is 6 more than the number who passed chemistry.Every student passed at least one of the two subjects.i.how many students passed biology ii.how many students passed chemistry iii.how many

15. ## Social Studies

Why were backcountry colonist more self significant than plantation?

16. ## math

Christie pilots her plane for 360 mi against a headwind in 33 hrs. The flight would take 22 hrs and 15 mins with a tailwind of the same speed. Find the headwind and the speed of the plane in still air.

17. ## Statistics

If there are 6 red disks numbered 1 through 6, and 4 yellow disks numbered 7 through 10, find the probability of selecting a yellow disk given that the number selected is less than or equal to 4 or greater than or equal to 8.

18. ## value

If 13 Times A Number Is Subtracted From The Square Of The Number,the Result Is 30.Find The Number.

19. ## Chemistry

What is the maximum mass, in grams, of NH3 that can be produced by the reaction of 1.0 g of N2 and 1.0 g of H2 using the reaction below? N2+H2→NH3 (not balanced) What is the maximum mass, in grams, of that can be produced by the reaction of 1.0 g of and

20. ## Algebra

The difference between twice a number and a number that is 5 more than 3. Write an equation that could be used to find the value of the number n, and explain how you arrived at.at your choice

21. ## Chemistry

What is the total no. Of atoms present in 25.0 mg of camphor

22. ## mathematics

In a class of 40 students;30 offer science; 20 offer mathematics and 8 neither. a.illustrate this information on a venn diagram . b.how Many students offer both subjects. c.how many students offer exactly one subject

23. ## Geology

Which of the following is consistent with the plate tectonic theory? Which of the following is consistent with the plate tectonic theory? A. Lithosphere convection drives mantle movement. B. As a plate sinks into the asthenosphere, it pulls the trailing

24. ## chem

Using the balalnced chemical equation, how many grams of MgO are produced when 31.0 grams of O2 react completely with Mg? 2 Mg + O2 → 2 MgO Molar Mass Mg = 24.3 g/mol O2 = 32.0 g/mol MgO = 40.3 g/mol 55.7 78.1 89.1 111.3

25. ## math

A dairy farmer wants to mix a 20% protein supplement and a standard 10% protein ration to make 1200 pounds of a high-grade 15% protein ration. How many pounds of each should he use?

26. ## Math

Jean has \$280 in her savings account starting next week she will deposit \$30 in her account every week is the amount of money in her account proportional to the number of weeks. Thank you for helping

27. ## Physics

A 1.55 m tall person lifts a 1.80 kg book off the ground so it is 1.95 m above the ground. A.) What is the potential energy of the book relative to the ground? B.) What is the potential energy of the book relative to the top of the person's head?

28. ## Math

if one gallon of milk, \$3.84, what is the cost of three pints

29. ## Math

At the beginning of a trip, Gail's odometer reading was 100001 km. Gail filled the tank with 35L of gas. During the trip Gail bought 48L of gas, and at the end of the day filled the tank with 45.5L of gas. Gail was surprised to find at that time tat the

30. ## Percentage

On a rainy day,out of 150 students in a school 25 were absent.find the percentage of students absent from the school? What percentage of students are percentage?

31. ## Math

Henry walks out of his hall and proceeds to walk 160 feet due north. He then turns left (west) and walks 150 more feet. Finally, he turns 65 degrees left and walks 280 feet. How many feet is Henry from his starting point?

32. ## science

what is the difference between xylem and phloem?

33. ## Math

Mary bought a scarf for five dollar spent Half of the remaining money on jogging shoes bought lunch for two dollars and then spent half of her remaining dollars on a DVD she had \$10 left how much money does she start with?

34. ## algebra

The sum of two numbers is 56. The sum of the smaller and 5 times the larger is 192. Find the numbers.

35. ## Physics

On a windless day, a sailor (m=75kg) decides he wants to go sailing (=300kg). In order to move on this windless day, he decides to mount a powerful battery operated fan )m=(20 kg) on the back of his sailboat and points the running fan at the sail. The fan

36. ## Geology

Which of the following pieces of evidence supports the plate tectonic theory? A. Ocean-floor sediments are oldest at the ridge crest. B. The stripe patterns of high- and low-intensity magnetism are mirror images on both sides of an oceanic ridge. C.

37. ## Physics

A superhero flies 185 m from the top of a tall building at an angle of 15◦ below the horizontal. What is the horizontal component of the superhero’s displacement? Draw the vectors to scale on a graph to determine the answer. Answer in units of m. Your

38. ## Science/Math

You put 50 mL of water in a graduated cylinder, then you place an object in the water. The level rises to 55 mL. What is the volume of the object?

39. ## chem

Using the balanced chemical equation, the number of moles of oxygen gas needed to react with 2.5 moles of Mg is __________. 2 Mg + O2 → 2 MgO

40. ## Chem 125

Three bulbs are connected by tubing, and the tubing is evacuated. The volume of the tubing is 27.0 mL. The first bulb has a volume of 37.0 mL and contains 5.65 atm of argon, the second bulb has a volume of 250 mL and contains 2.16 atm of neon, and the

41. ## MATH

d sum of 2 numbers is 38 when 8 is added to twice one of the numbers d result is 5 times the other number find d two no

42. ## Science

MnO4+C2O42-=Mn2+ +CO2

43. ## Math

The first three terms of an AP are x ,2x+1 and 5x-1.Find the value of x and the sum of the first 10 terms

44. ## algebra

Travis is 19 years older than his sister Danielle. In 14 years, he will be twice as old as Danielle. How old is each of them now

45. ## Physics

A) An object with mass M=10kg is held on a incline. The object and the incline surfaces have a static friction coefficient of 0.3. What is the maximum angle at which the object starts moving? B) Again, suppose that the force in A) is a push applied

46. ## calculus

5.In a certain state the maximum speed permitted on freeways is 65 km/h and the minimum speed is 40 km/h. The fine for violating these limits is Rs.15 for every kilometer per hour above the maximum speed or below the minimum speed. Express the amount of

47. ## Math

Mary bought a scarf for five dollar spent one and a half of her remaining money on jogging shoes bought lunch for two dollars and then spent half of her remaining money on a DVD she had \$10 left how much money does she start with?

48. ## algebra

Admission to a baseball game is \$4.50 for general admission and \$5.50 for reserved seats. The receipts were \$4588.00 for 948 paid admissions. How many of each ticket were sold?

49. ## English

1. He feels gloomy. 2. He feels blue. 3. He feels depressed. 4. He feels down. 5. He feels melancholy. ====================== Thank you for your help. They all seems to be correct? What about #5? Can we use that way? Which ones are commonly used?

Salvador bought 3 pounds of oranges that cost x cents per pound, a cucumber for 59 cents, and 2 bananas for 35 cents. Write an expression in simplest form that represents the amount spent. I don't understand how you would write that into an equation. I

51. ## Inorganic Chemistry

Methyl Alcohol (CH3OH) and ethyl alcohol (C2H5OH) form ideal solutions at 50°C, the vapor pressure of pure methyl alcohol is 0.529 atm, and the vapor pressure of pure ethyl alcohol is 0.292 atm. What is the vapor pressure at 50°C of a solution containing

52. ## Math

Solving ya Systems of Equations by elimination -14x+15y=3 21x-20y=-10 The LCM is 42 so I am able to get (-14x +15y=15)3 = -42x+45=45 (21x-20y=-10)2 = 42x-40y=-20 y =7 but when I plug it in to try and figure out x I do not get a whole number, can you help?

53. ## Physics

A 46−N lithograph is supported by two wires. One wire makes a 28° angle with the vertical and the other makes a 16° angle with the vertical. Find the tension in each wire.

54. ## Chemistry

A hypothetical pure element consists entirely of two isotopes. The natural percent abundance of the isotope with mass 25.5 u is 78.8 percent. The other isotope has mass 29.5 u. Calculate the atomic weight of the naturally occurring element.

55. ## Inorganic Chemistry

A 1.577 M solution of AgNO3 has a density of 1.220 gram per centimeter cube. What is the molality of the solution?

56. ## Math

The first term of a GP is 64 and the common ratio is 1/2.How many terms must be added to obtain a total of 127 1/2?

57. ## Chemistry a level

A solution of potassium permanganate (KMnO4) was standardised by titrating with 0.20 g of Na2C2O4 dissolved in 50 cm3 of acidified water. The endpoint was reached after 23.10 cm3 of solution had been added. Calculate the molar concentration of KMnO4 in the

Bacterial populations can grow to enormous numbers in a matter of a few hours with the right conditions. If a bacterial colony doubles size every 15 minutes, how many bacteria will be present after 1 hour if the colony began with 4 bacteria?

59. ## Physics

If someone pushes on a box on a horizontal floor with a horizontal force of 17.8 N, but the box does not move, what is the static friction (Fs) between the box and the floor? Explain. The next question is: If the box just starts to move with a horizontal

60. ## Math

A machine produces open boxes using rectangular sheets of metal (12in by 20in). The machine cuts equal-sized squares from each corner, and then shapes the metal into an open box by turning up the sides. Express the volume of the box V(x) in cubic inches as

61. ## Math

Convert each statement below into symbolic form and generate its truth table: If the New York Yankees win the world series or the New York Jets win the super bowl then New York fans will be overjoyed and dance in the streets. Y: The New York Yankees win

62. ## Math

order these numbers from least to greatest. 3/20, 45%, 1/5, 7.5%, 27.5%

63. ## math

In a survey, 12% of people have no pets, 44% of the people have 1 pet, 16%of the people have 2 pets and 28% have 3 or more pets. If 126 people have two or fewer pets, how many people were in the survey?

64. ## Math

If an average catcher takes 1.9 seconds to throw a baseball from home plate to second base on a 90 foot baseball diamond how fast in mph did the catcher throw the ball?

65. ## chem

For the reaction 2 N2(g) + 3 H2(g) → 2 NH3(g) which of the following can be determined using only the coefficients of the balanced chemical equation? the number of moles of NH3 obtained if 4.2 mol of N2 react completely to form NH3 the weight of NH3

66. ## Physics

How much power is required to move a 1500 kg elevator at a constant velocity of 2.5m/s.

67. ## Math

In ΔABC, A=75 degrees and b=6. Giving your answer in interval notation, find the range of values of a such that: only one triangle is possible. two different triangles are possible. Please explain or show work!

68. ## physics

A car travelled 7km40degree west of north and then 10km east.what is the resultant displacement using scale drawing

69. ## maths fraction

1/2 of the pupils in a class are girls. 3/8 of the girls and 1/4 of the boys wear spectacles. what fraction of the pupils wear spectacles? 3/8 + 1/4 = 3/8 + 2/8= 5/8

70. ## Math

On a California map 1/4 of an inch represents 20 miles how many miles does 3 1/4 inches represent

71. ## chemistry help

Chlorine has two Isotopes with mass number of 35&37.if the relative atomic mass is 35.5, find the percent abudance of Cl-35(isotope with mass number 35)

72. ## Math

A bouquet of 5 roses is made from 8 pink roses and 7 white roses: 1. Find the number of bouquets of 5 roses. 2. Find the number of bouquets of 5 roses in which three are pink and two are white. 3. Find the number of bouquets of 5 roses composed of all pink

73. ## Physics

A red ball is thrown straight up from the edge of the roof of the building. A green ball is dropped from the same point 1.80 seconds later.a)if the height is 60.0 m, what is u(red)?b)if u(red) greater than u(max) determine u(max). Ive solved abut i cannot

74. ## Math

What does the greater common factor, in this case 12, represent in terms of cupcakes. It means that I have 3 boxes with 4 cupcakes in each box. I am representing 2x2x3. I drew 3 boxes each box is representing 2x2. The three boxes represent the 3

75. ## American Government

Which influences helped the most to create a lasting, stable Constitution? Paragraph 1 – introduction of historical influences of Constitution and thesis statement Paragraph 2 – source 1 (philosopher) and contribution to lasting, stable Constitution

76. ## Physics

a 1 kg textbook has been pushed and let go sliding to the left on a flat table no one is pushing the book at this moment. it is sliding a. calculate the weight of the textbook? How do I do these calculations? b. based on this weight, what must the normal

77. ## Calculus

Suppose f(x) and g(x) are functions of x differentiable at x = 4. Given that f(4) = 3, f'(4) = -2, g(4) = 6, g'(4) = -5, find the value of each of the following. a. Derivative of f(x) * g(x) My answer: -27 b. Derivative of (f(x))/(g(x)) My answer: 1/12 c.

78. ## English

1. Aren't I pretty? 2. Ain't I pretty? 3. Am I not pretty? 4. I'm pretty, aren't I? 5. I'm pretty, ain't I? 6. I'm pretty, am I not? ------------------------------- Are they all grammatical?

79. ## Art History, college

Q: How did the Babylonians make the Ishtar Gate blue (and all its other colors)? A: The Babylonians make the Ishtar Gate blue (and all its other colors) through the use of blue glazed enameled bricks for the blue which was thought to be made of the

80. ## Math

A hardware store makes a mixed bag of 42 items using screws, bolts, and washers. The cost of screws are \$3.00 each, bolts cost \$2.00 each, and washers are \$1.50 each. The mixture calls for four times as many screws than bolts. The total cost of the mixture

81. ## Math

Determine whether the statement is true or false. The lines with equation ax+by+c1=0 and bx-ay+c2=0, where a ≠ 0 and b≠ 0, are perpendicular to each other. ______________________________________________ True. The slopes of the lines are m1 and m2

82. ## Statistics

A tobacco company claims that the nicotine content of its "light" cigarettes has a mean of milligrams and a standard deviation of milligrams. What is the probability that randomly selected light cigarettes from this company will have a total combined

83. ## Art History, college

Q:The Old Kingdom, or Old Dynasty, of Egypt is considered the golden age of Egypt. Using specific examples, explain why. A:The Old Kingdom, or Old Dynasty, of Egypt is considered the golden age of Egypt because of the monumental building efforts such as

84. ## Math

A machine worth Ruppes 25000 by 5% find the value after 1 year

85. ## Math

There are 50 pupils in wesleys year group at school three tenths of them don't like PE lessons the rest do how many pupils in wesleys year like PE lessons

86. ## Inorganic Chemistry

What is the mole fraction of solute in a 1.00 molal solution in which toluene (C7C8) is the solvent.

87. ## physics

The speed of sound in air is 350m/sec the frequency of the fundamental node emitted by tube length 50cm open one end is:

88. ## Chemistry

what is the energy if a photon of red light that has a wavelength of 8.90x10^-7

89. ## chemistry

Zinc react with diluted sulfuric acid to give hydrogen but silver doesn't explain?

90. ## MATH

During the 1st year at university, Erica¡¦s father had been sending her \$1,000 per month for incidental expenses.Starting from the 2nd academic year, her father decided instead to make a deposit into a savings account on August 1st every year so that

91. ## Math

If one liqid gallon is 231 cubic inches, how many gallons of juice would fit in a container that is 2 ft. by one foot by 1 foot.

92. ## chemistry

what is the type of catalyst that corresponds the use of the platinum wire

93. ## Ela

1) tank 50 deep 2)discharge pump will empty tank at 250 gallons per minit 3)tank will at 100 gallons per minit 4)2-floats will contor (m1) to fill tank set at 25feet 42feet 5)a float is set at 10feet for shut off for discharge pump 6)install pressure

The largest flying flag is 7410 sq ft and weighs 180 lbs. There are a total of 13 horizontal stripes on it. Let h represent the height of each stripe. What is the value of h?

95. ## chemistry

No. Of atoms in 12g of Mg is equal to

96. ## Physics

If someone pushes on a box on a horizontal floor with a horizontal force of 17.8 N, but the box does not move, what is the static friction (Fs) between the box and the floor? Explain. The next question is: If the box just starts to move with a horizontal

97. ## English

How can "teacher behaviours in math" be connected to constructivism??

98. ## Math (derivative by limit process)

Find the derivative of the function by the limit process. f(x)=1/sqrt(x) I've worked through my problem and got f'(x) to be -1/2x but the actual answer is -1/2x^3/2? Where did the 3/2 power come from? Any help is greatly appreciated!

99. ## Physics

A satellite orbits the moon at height of 2000m.assuming it to gravitational pull of the moon,find the speed and time it takes for one orbit,given that mass of moon is 7.34 * 10 to power 22 kg and radius is 1.738 * 10 to power 6m.(g = 6.6 * 10 to power

100. ## maths

In an isosceles triangle if two angles are 60 degrees, what degree will the third angle be?

101. ## Maths

A rectangle has an area of 36m2 list all possible lengths of sides using while numbers it could have

102. ## algebra

The length of a rectangle is 6 inches more than the width. If the perimeter is 176 inches, what are the length and the width?

103. ## maths

annie bakes some cupcakes for her children. If she gives each child 8 cupcakes,she will have 2 cupcakes left.If she gives each child 9 cupcakes, she will need another 2 cupcakes. How many children does annie have? 8-2= 6 6 divide 2= 3 9-2= 8 8 x 3= 24 24

104. ## Math

In a school there are 7 girls to every 5 boys.If there are 120 more girls than boys.How many pupils are there in tge school?

105. ## PHYSICS

Explain for each of the following, The Magnus force applies and how it causes an effect. a. A car tire rotating while a car drives. b. A tennis ball curves while moving towards the opposite side of the net. c. A tennis ball changes directions when it hits

106. ## Enlgish

Explain how the following visuals could influence your reaction to a news story. Video footage of refugee camp, in which thousands of people are living in tents and suffering from lack of food and medical care. A photograph of a politician in handcuffs

107. ## Geometry I

Two transformations take place, the resultant change is A(x,y) ---A''(x+4, y-6), This is a result of a reflection in the y axis followed by a _________ (translation, reflection, rotation). I have the answer give by teacher as a "reflection, but I don't

108. ## English

1. They used to live there, didn't they? 2. They used to live there, usedn't they? (Are both OK?) 3. Didn't they use to live there? 4. Usedn't they to live there? 5. Did they not used to live there? 6. Did they use to live there? 7. Did they used to live

109. ## science

If we implemented the FSM above six states using two digits 0,1 and only one bit per cycle using the classic ROM + State register circuit (shown below), only one input and outputwhat would be the appropriate number of locations in the ROM and the

110. ## Gov

How much leniency should be given to the federal and state governments in searching homes and collecting intelligence?

111. ## math trig

how do you solve arcsin(3/5) without a calculator?

112. ## calculus

For each of the following limits, determine the indicated limit if it exists. lim f(x)=? x approaches 4 from the left f(x)= -3.9997

113. ## distance problem

Ricky can ride 17 km on his bike in the same length of time ha can walk 9 km.if his riding speed is 4 kph faster than his walking speed how fast does he walk

114. ## math

The length of a rectangle is 3 feet less than 4 times the width. If the perimeter is 84 feet, find the length and the width of the rectangle.

115. ## dinesh physics

a car start from rest and sccelerates uniformly at 2 ms-2 for 10s what is its velocity at the end of 10s

116. ## Math

Guys please help me with this Trigonometry question based on De Moivre's theorem. Q: Find ¦È such that 0¡Ü¦È¡Ü360. cos7¦È + cos3¦È = cos5¦È I attempted to solve it with limited knowledge but I kind of doubt my answer. Anyway, this is how I

117. ## Physics

Circular motion: Not sure if I did this right. I need to find the speed that a spaceship needs to rotate to create an artificial gravity of 9.8m/s^2 (at feet) r=10m a=V^2/r 9.8=v^2/r root of(9.8*10)=v v=9.9m/s is this close?

118. ## English

1. The radio is out of order. 2. The radio doesn't work. 3. The radio is out of work. 4. He is out of work. 5. He is unimployed. ------------------------------- #1 is #2, right? What about #3? Does #3 mean #1? Does #4 mean #5?

119. ## data managment

what are the similarities and differences between organized counting and permutations, with examples?

120. ## Math

What's the missing number ? 5+3-6-8+4-?=-9

121. ## English

1. The cooker is used to cook rice. 2. The machine is used to make books. 3. The knife is used to cut vegetables. 4. The table is used for the kids to study. 5. The room is used for him to study. 6. The car is used for his wife to go shopping.

122. ## Math

If 1 bag of mulch covers 2 cubic feet, how many bags of mulch do you need to cover a garden three inches thick, eight feet long, and four feet wide?

123. ## MATH

Allyne said that she had 8/5 of pizza left from the party. Billy said that she had 1.3 pizzas left. Explain if Billys answer is correct or not.

124. ## Science

The dimensions of a certain water tank 8m*6m*4m.what is the pressure at the bottom of the tank,if the tank of half filled?

125. ## Social Studies

I have to search and compare these civilization... ･pre 20th century Japan ･Incan It's my Social Studies project😲💦 Would you recommend me some good websites in English?

126. ## Physics

A 75.0 kg object is on an incline of 30 degrees horizontally. I have to calculate several things from this, and I need help with some of them. I have to find the following: 1. Static coefficient of friction 2. Kinetic coefficient of friction 3.

127. ## English

Is post structuralism theory applied on the novel A fare well arms by Hemmingway?

128. ## Math

What's the missing number? 5+3-6-8+4-?= -9

129. ## Math

Find the value of x. x is hypotenuse given is the angle 28 degrees and the adjacent is 11 now how am i suppose to find the hypotenuse with only given the angle 28 degrees and the adjacent 11 i don't have the opposite

130. ## Maths

What is the equation, in the form y= x^2 + bx + c of the parabola which passes through the points (-3,0) and (1,-16)? y=a(x-s)(x-q) y=a(x-(-3))(x-1) y=a(x+3)(x-1) y=a(x^2+2x-3) I'm confused...

131. ## Math

5/9 ,7/18 and 1/2 arranged from the smallest to the largest

132. ## biology

Pearl formation is in the syllabus of aipmt or aiims?

133. ## Physics

A girl jumps off a platform with a horizontal velocity of 2.06 m/s and lands in the water 1.3 s later. Gravity is 9.8m/s^2. How high is the platform.

134. ## Physics

pressure is force per area in a high wind the increased pressure inside of a skyscraper can be up to 29 lbs/ft2. calculate the wind load in pounds on the windward side of a 150 ft wide, 850 ft tall building. How much is this in newtons?

135. ## english books

Who was the first to challenge the book The Awakening.

136. ## Science

How high can a crane lift a 500 kg object using 20 000 Joules of energy

137. ## Geometry I

Two transformations take place, the resultant change is A(x,y) ---A''(x+4, y-^, This is a result of a reflection in the y axis followed by a _________ (translation, reflection, rotation). I have the answer give by teacher as a "reflection, but I don't

138. ## Inorganic Chemistry

what is the molarity of concentrated hydrogen fluoride if the solution is 48% by mass and has a density of 1.17 gram per milliliter.

139. ## English

1. I went to get my seal carve/cut out. 2. I went to get my stamp carved/ cut out. -------------------- Can we us both expressions, seal and stamp? What is the difference between them?